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Finding the Fourth Proportional to 48,849.30, 73,241.10 and 19,251.90

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Solution

The fourth proportional to 48,849.30, 73,241.10 and 19,251.90 is: 28,864.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,849.30 : 73,241.10 = 19,251.90 : x
  2. Step 2: Convert to fraction form
    48,849.30/73,241.10 = 19,251.90/x
  3. Step 3: Cross multiply
    48,849.30x = 73,241.10 × 19,251.90
  4. Step 4: Simplify right side
    48,849.30x = 1,410,030,333.09
  5. Step 5: Solve for x
    x = 1,410,030,333.09/48,849.30
  6. Step 6: Final answer
    x = 28,864.90

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.